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Rozprawy doktorskie na temat „Rumen fermentation”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Wiryawan, I. Komang Gede. "Microbial control of lactic acidosis in grain-fed sheep." Title page, contents and summary only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phw799.pdf.

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Bibliography: leaves 122-138. Investigates the use of microbial inoculants to prevent the onset of acidosis in acutely grain fed animals; and, the most effective combination of virginiamycin and lactic acid utilising bacteria (selenomonas ruminantium subsp. lactilytica and Megasphaera elsdenii) in controlling lactic acid accumulations in vitro.

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2

Snyman, Leendert Dekker. "Qualitative characteristics of selected Atriplex nummularia (Hatfield Select)." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-04022007-162554.

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Yakub, Guliye Abdi. "Energy sources and amino acids in rumen fermentation." Thesis, University of Aberdeen, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408786.

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In a rumen simulation technique (RUSITEC), the availability and timing of energy (maltose) supply to amino acids/peptides from thawed (frozen) grass was examined in order to determine if continuous (synchronous), rather than transient (asynchronous, with maltose infused 6 h prior to, or 6 h after feeding RUSITEC with grass), availability of energy was required for optimum ruminal fermentation. The addition and pattern of energy supply (synchronous or asynchronous) did not influence either fibre (DM) degradation or microbial numbers, although there was an indication of increased total volatile

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4

Holder, Vaughn. "The effects of specific Saccharomyces cerevisiae strains and monensin supplementation on rumen fermentation in vitro." Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-08192008-131813.

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5

Edwards, Nicholas John. "Nitrogen assimilation by rumen microorganisms: a study of the assimilation of ammonia by rumen bacteria in vivo and in vitro." Title page, table of contents and abstract only, 1991. http://web4.library.adelaide.edu.au/theses/09PH/09phe2657.pdf.

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6

Carson, Mark T. "Diet, rumen fermentation pattern and butyrate metabolism in sheep." Thesis, Queen's University Belfast, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336040.

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7

Karnati, Sanjay Kumar Reddy. "Application of molecular techniques to assess changes in ruminal microbial populations and protozoal generation time in cows and continuous culture." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1164662405.

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8

Embaby, Mohamed GalalEldeen. "EFFECTS OF UNCONVENTIONAL PLANT OILS AND RUMEN ADAPTATION ON METHANE GAS EMISSION AND RUMEN FERMENTATION CHARACTERISTICS." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/theses/2353.

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The objectives of this work were to investigate the effects of unconventional oils rich in phenolic compounds and rumen adaption on methane (CH4) gas production and rumen fermentation characteristics under in vitro rumen conditions. For this purpose, two sets of trials were conducted. In the first trial, the effects of blackberry, blueberry, raspberry, pomegranate, black seed and hemp oils on CH4 production and fermentation were examined in three 24 h batch culture experiments. Treatments in each experiment consisted of control (no oil supplement), control plus corn oil, or control plus two of

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9

Zhang, Ning. "Molecular characterization of the ruminal bacterial species Selenomonas ruminantium : a thesis submitted to the University of Adelaide for the degree of Doctor of Philosophy /." Title page, contents and abstract only, 1992. http://web4.library.adelaide.edu.au/theses/09PH/09phn714.pdf.

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Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Science, Waite Agricultural Research Institute, 1993.<br>Includes two of author's articles in pocket inside back cover. Includes bibliographical references (leaves 133-150).

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10

Yohe, Taylor. "Performance and Development of the Rumen in Holstein Bull Calves Fed an Aspergillus oryzae Fermentation Extract." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397769968.

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11

Frumholtz, Pierre Paul. "Manipulation of the rumen fermentation and its effects on digestive physiology." Thesis, University of Aberdeen, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293122.

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The aims of the present study were to determine the effects of various forms of rumen manipulation on rumen fermentation, blood metabolites and circulating gastrointestinal hormones in ruminants, and to assess any post-ruminal effects of manipulating agents. The mechanism of gut hormone release in steers fed by intragastric infusion was also examined. A long term study of defaunation in sheep indicated that a steady state was reached six months after defaunation. Whereas at the end of this period ruminal concentrations of end products of rumen fermentation and blood metabolites were similar in

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12

Altaye, Belete Teferedegne. "The use of foliage from multipurpose trees to manipulate rumen fermentation." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322477.

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13

Asiegbu, Frederick Obioma. "Fungal delignification of lignocelluloses : physiological aspects and enhancement of rumen fermentation." Thesis, University of Strathclyde, 1991. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24262.

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This project was primarily concerned with clarifying the extent to which fungal delignification in solid substrate fermentations could be optimised and applied to enhancing the nutritional value of high-fibre lignocellulosic ruminant feeds. Ten fungi were assessed for their ability to grow on media containing cell-wall related phenolic compounds and polysaccharides. Five strains were selected as being particularly active in secreting enzymes depolymerising native insoluble crystalline celluloses and lignins. The key cell wall phenolic ferulic acid was shown to exhibit differential patterns of

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14

McMurphy, Casey Paul. "Effects of Humic/Fulvic Acid on Rumen Fermentation in Holstein Steers." Thesis, The University of Arizona, 2007. http://hdl.handle.net/10150/193335.

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Six ruminally fistulated steers (average BW 317 kg) were used in a 5 X 5 + 1 Latin Square design to determine effects of humic/fulvic acid (HFA) on serum urea nitrogen (SUN), rumen pH, rumen ammonia nitrogen (RAN), and rumen VFA production in Holstein steers. Treatments included a control (0%), 0.5, 1.0 or 1.5% HFA, and a diet containing monensin (33 mg/kg). A quadratic feed intake response was observed; with intake lowest for 0.5 and 1.0 and highest for 1.5 relative to control steers. No treatment x time interaction was observed for RAN, pH, SUN, total VFA or individual VFA. No treatment d

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15

Wingard, Sheryl. "EFFECT OF DIRECT-FED MICROBIALS AND MONENSIN ON IN VITRO RUMEN FERMENTATION." UKnowledge, 2014. http://uknowledge.uky.edu/animalsci_etds/42.

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The impact of supplying a mixed culture of lactate producing bacteria on in-vitro rumen fermentation of forage- (Experiment 1) and concentrate- (Experiment 2) based diets in the presence and absence of monensin was explored. In experiment 1, interactions between DFM and MON were absent (P>0.10) for gas production and fermentative end products. Gas production and fermentative end products were unaffected by DFM alone (P>0.10). Monensin decreased (P<0.001) CH4 and NH3 production, rate and total gas production, as well as total VFA concentration and molar proportions of acetate and butyrate. Howe

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16

Yan, Tianhai. "The effects of feeding molasses on rumen fermentation, intake and milk production." Thesis, University of Glasgow, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281907.

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17

Godoy, Montanez R. H. "Rumen fermentation and blood metabolites in animals fed diets based on molasses." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372932.

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18

Fard, Ebrahim Rowghani Haghighi. "Chemical and nutritional characteristics of whole-crop barley ensiled at different dry matter contents with or without silage additives." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307930.

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19

Loveland, Jennifer. "Hindgut fermentation in ruminating Holstein calves." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/49826.

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The effects of quantity of dietary starch and type of dietary protein on hindgut fermentation were evaluated. Thirty—two Holstein bull calves were fed diets containing variable amounts of orchardgrass hay and a grain mixture. The amount of starch and types of protein were: [L1] low starch, soybean meal (SBM); [L2] low starch, fishmeal plus dried brewers' grains (FBG); [Hl] high starch and SBM; [H2] high starch, FBG. The percentages of acid detergent fiber (ADF) and crude protein were: [L1] 19.2%, 15.1%; [L2] 18.0%, 15.6%; [H1] 9.5%, 14.9%; [H2] 9.6%, 15.4%. After calves were fed the di

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20

Brown, V. E. "An investigation of methods to predict rumen fermentation products from in vivo measurements." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368459.

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21

Ankrah, Peter. "Contribution of ciliate protozoa to the rumen fermentation and nutrition of the ruminant /." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487598303839471.

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22

Cassiano, Eduardo Cuelar Orlandi. "Avaliação de anticorpos policlonais em bovinos adaptados ou não à dietas com alta proporção de carboidratos prontamente fermentescíveis após indução à acidose." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-17042014-100147/.

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O objetivo deste trabalho foi avaliar o efeito de um preparado de anticorpos policlonais (PAP) contra bactérias ruminais específicas, Streptococcus bovis e Fusobacterium necrophorum, em parâmetros ruminais da fermentação, em vacas canuladas, adaptadas ou não a uma dieta de alta proporção de carboidratos prontamente fermentescíveis, após indução à acidose. O delineamento experimental utilizado foi o quadrado latino 3X3 replicado em arranjo fatorial de tratamentos 3X2, sendo 2 aditivos alimentares (PAP na apresentação em pó - PAPP e PAP na apresentação líquida - PAPL) mais um grupo controle (CON

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23

Nienaber, Herman. "Effect of roughage to concentrate ratio on ruminal fermentation and protein degradability in dairy cows." Diss., Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-02122009-151435.

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24

Atasoglu, Cengiz. "Regulation of amino acid and ammonia utilisation by ruminal microorganisms." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327300.

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25

Lehmkuhler, Jeffrey W. "Feedlot cattle responses to ruminally undegradable protein /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3036841.

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26

Guyader, Jessie. "Manipulation of the hydrogen pool available in the rumen to reduce methane emissions from ruminants." Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22543/document.

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La réduction des émissions de méthane (CH 4) des ruminants permet de limiter les impacts environnementaux négatifs de leur élevage et d’améliorer leur efficacité digestive. Dans le rumen, le CH 4 est majoritairement produit par les méthanogènes à partir de l’hydrogène (H 2). La disponibilité de l’H 2 pour ces micro-organismes est réduite en limitant sa production par les protozoaires (via un apport de lipides ou extraits de plantes dans la ration) ou en stimulant des voies utilisatrices d’H 2 compétitives à la méthanogenèse (via un apport alimentaire de nitrate). Aucune étude n’a porté sur l’a

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27

Armato, Leonardo. "Yeast cell walls and live yeasts diet supplementation in beef cattle: effect on rumen fermentations and ultrasonographic rumen wall findings." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3422409.

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The objective of this thesis was to determine the effect of yeast supplements on the performance and health of beef cattle during the receiving and finishing period. Furthermore, another aim of this study was to evaluate the applicability of rumenocentesis on beef cattle and the viability of transabdominal ultrasonography of the rumen mucosa as a suitable, non-invasive diagnostic tool to identify beef cattle affected by SARA. Three trails were conducted in order to do achieve that. Trail I and Trail II were conducted simultaneously using the same animals, while the third trail used a larger sa

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28

Mackintosh, E. D. "The effect of monensin on in vitro rumen fermentation and in vivo rumen and total tract digestion and milk production in the dairy cow." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265711.

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29

Olvera, RamiÌrez Andrea Margarita. "The effect of yeast (Saccharomyces cerevisiae) on pathogen survival and fermentation parameters in the rumen." Thesis, University of Aberdeen, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487335.

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Enteric pathogens such as Escherichia coli 0157:H7 and Listeria monocytogenes have been identified as an important cause of human intestinal disease. Cattle and other ruminants appear to be the main reservoir of these food-borne pathogens. Reducing the carriage and shedding of these food-borne pathogens from their animal host would be of significance both for public health and economically. The objective of the present study was to investigate the effect of S.Ã‚Â· cerevisiae on growth and/or survival of E coli 0157:H7 and L. monocytogenes in the rumen, using a combination of in vitro and in vi

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30

Ningrat, Rusmana Wijaya Setia. "Studies on Sapindus rarak DC as a defaunating agent and its effects on rumen fermentation." Thesis, University of Nottingham, 2005. http://eprints.nottingham.ac.uk/14437/.

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The aim of the work described here was to examine the antiprotozoal activity of the pericarp from Sapindus rarak DC (Sapindaceae) for its potential to defaunate the rumen, either partially or completely, without having a detrimental effect on the bacterial population and on rumen fermentation, and hence enhancing rumen productivity. An approach to improving microbial efficiency in the rumen is to eliminate protozoa (defaunation). Elimination of protozoa by chemical means is potentially the most convenient method. However, it is likely that some chemicals are not toxic specifically to the proto

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31

Castagnino, Pablo de Souza. "Performance, carcass traits and rumen fermentation from feedlot nellore cattle fed crude glycerin and virginiamycin /." Jaboticabal, 2018. http://hdl.handle.net/11449/152871.

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Orientador: Telma Teresinha Berchielli<br>Coorientador: Giovani Fiorentini<br>Banca: Saulo da Luz e Silva<br>Banca: Otavio Rodrigues Machado Neto<br>Banca: Paulo Henrique Moura Dian<br>Banca: Juliana Duarte Messana<br>Resumo: O glicerol é um substrato utilizado por bactérias que metabolizam o lactato ruminal e a virginiamicina é um antibiótico não ionóforo que inibe o crescimento de bactérias gram-positivas produtoras de lactato. Foram realizados dois experimentos para avaliar os efeitos da glicerina bruta (GB) e da virginiamicina (VM) na ingestão, digestibilidade, fermentação ruminal, populaç

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32

Gomez-Alarcon, Rogelio Alfonso. "Effects of Aspergillus oryzae on milk production, feed utilization and rumen fermentation in lactating dairy cows." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184589.

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Two production trials were conducted for 84 d each. The first with 22 Holstein cows in late lactation. The second with 46 Holstein cows in early lactation. Treatments were C (control) and AO (A. oryzae 3g/d). Diets were for production trial 1 a 1:1 forage: concentrate ratio; for trial 2 was 2:3. Milk production in trial 1 was higher (P > .05) in AO fed cows during the first weeks of the trial. In trial two AO cows consistently produced more milk (P < .03). Rectal temperatures during hot weather (over 35°C) were consistently lower in AO fed cows, though not significant (P > .10). Two digestibil

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33

Silva, Zinaldo Firmino da [UNESP]. "Digestão e fermentação ruminal em vacas leiteiras recebendo glicerina bruta na dieta." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/104045.

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Made available in DSpace on 2014-06-11T19:32:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-12-16Bitstream added on 2014-06-13T21:05:19Z : No. of bitstreams: 1 silva_zf_dr_jabo.pdf: 288941 bytes, checksum: c6a44e855aa5751be49544caeb8b11a1 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico do Maranhão (FAPEMA)<br>Avaliou-se efeito da inclusão de 0, 15 e 30% de glicerina bruta (GB) na matéria seca (MS) de dietas em substituição ao milho grão moído sobre o consumo de MS, produção de leite (PL), ferme

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34

Romagnolo, Donato. "Ruminal degradability of subfractions of protein sources as determined by gel electrophoresis." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/45176.

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Degradability in the rumen of several protein sources was determined by suspending from 12 to 13 g of feedstuff in dacron bags into the rumen for 0, 2, 6, 12, 24, 36, 48, and 72 h. Rumen cannulated lactating Holstein cows consuming a diet of corn silage, alfalfa, soybean, and high moisture corn were used. Degradability of protein varied from 18.6% for corn gluten meal to 72.3% for soybean meal. Gel electrophoresis was used to monitor rates of degradation in the rumen of fractions of corn gluten (CGM), CORN, cottonseed (CSM), peanut (PM), and soybean meal (SBM) protein fractions. Fractional deg

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35

Restrepo, P. Ricardo J. "Dry matter digestibility and VFA production of selected feedstuffs using RUSITEC /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9901273.

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DELFINO, FRANCIS JOSEPH. "IDENTIFICATION AND CHARACTERIZATION OF CEREAL GRAIN TISSUES RESISTANT TO RUMEN MICROBIAL DIGESTION USING IN SITU, IN VITRO AND SCANNING ELECTRON MICROSCOPY TECHNIQUES." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183909.

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A series of studies was conducted using SEM in conjunction with chemical analysis, in situ and in vitro digestion techniques, to characterize the anatomical components from barley, corn, sorghum and wheat grains which constitute "fiber" and investigate their susceptibility to rumen microbial digestion. Fractured grains were used to identify anatomical features and cell types prior to and after extraction or digestion. Certain anatomical features, including pericarp tissue, aleurone cells, endosperm cell walls, corneous and floury endosperm tissue and lemma and palea from barley, were easily id

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37

Barbi, Jose Henrique Tostes. "Use of the Rumen Simulation Technique (RUSITEC) to provide micro-organisms to assess in vitro rate of fermentation of forages." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309503.

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Deml, Mirko [Verfasser], Wilhelm [Akademischer Betreuer] [Gutachter] Windisch, and Michael [Gutachter] Pfaffl. "Effects of supplementing amylase and potease to ruminant diet on rumen fermentation characteristics and the rumen microbiota / Mirko Deml ; Gutachter: Wilhelm Windisch, Michael Pfaffl ; Betreuer: Wilhelm Windisch." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1135385548/34.

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Ruseckaitė, Irena. "Pašarų organinės medžiagos virškinamumo priklausomybė nuo karvių didžiojo prieskrandžio turinio fermentacijos lygio." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080318_135555-53731.

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Bandymas atliktas siekiant ištirti didžiojo prieskrandžio biocheminius ir mikrobiologinius rodiklius, šeriant karves skirtingos sudėties racionais; įvertinti didžiojo prieskrandžio fermentacinį aktyvumą; ištirti žolinių pašarų – šieno, šienainio, kukurūzų siloso virškinamumą in vitro, inkubuojant juos su skirtingo fermentacinio aktyvumo didžiojo prieskrandžio turiniu. Iš gautų rezultatų galime teigti, kad skirtingos sudėties racionai turi įtakos karvių didžiojo prieskrandžio turinio mikrobiologiniams ir biocheminiams rodikliams. Nustatyta, kad I (kontrolinės) grupės karvių didžiojo prieskrand

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40

Batallas, Carlos Eduardo. "The Effects of Feeding a High Level of Rumen Protected Fat with Rumen Undegradable Protein With or Without Niacin on Rumen Fermentation Characteristics, Apparent Nutrient Digestibility, and Milk Production in the Early to Mid Lactation Holstein Cow." DigitalCommons@USU, 1992. https://digitalcommons.usu.edu/etd/4075.

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Forty high producing early to mid lactation Holstein cows were blocked according to stage of lactation and previous two-week milk yield (experiment 1) . Eight ruminally and duodenally cannulated nonlactating Holstein cows were used for experiment 2. The objective was to determine the effects of the ration's high fat content (11.53%) when rumen degradable or rumen undegradable protein is fed with or without added niacin. Cows received one of five treatments: 1) basal ration (TMR); 2) basal ration with added rumen undegradable fat (RUF) (1.6 kg); soybean meal (SBM) (1.73 kg), and niacin (12 g);

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41

Guy, Christine. "Etude et modélisation des produits du métabolisme microbien et de la dégradation des composés pariétaux en fermenteur semi-continu par les microorganismes du rumen." Toulouse, INPT, 1988. http://www.theses.fr/1988INPT018G.

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Wettstein, Hans-Rudolf. "Influence of plant lecithins on rumen fermentation, lipid digestion and quality of milk and body fat in cattle /." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13721.

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Grimsell, Ashley. "Effect of protein source and quality on feedlot growth performance and rumen fermentation characteristics of Dohne Merino lambs." Diss., University of Pretoria, 2020. http://hdl.handle.net/2263/77824.

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The importance of protein quality in the formulation of ruminant rations has been regarded as inconsequential in the past. Moreover, the use of agro-industrial by-products as feed ingredients have become attractive alternatives in the animal feed industry, whereby several of these products characteristically have alternative protein qualities. Dried brewer’s grains (DBG) is a by-product originating from the beer manufacturing industry, frequently incorporated in the diets of feedlot lambs, however, has caused obstacles in some feed mills in South Africa. The oilseed by-products: canola-, soybe

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Ramihone, Bruno. "Facteurs limitant la fermentation dans le rumen des pailles de céréales (à petits grains) traitées à l'ammoniac anhydre." Montpellier 2, 1987. http://www.theses.fr/1987MON20281.

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Le traitement des pailles a l'ammoniac augmente leur digestibilite, leur ingestibilite et leur teneur en equivalent matieres azotees, mais la valorisation de ces pailles par les ruminants pose encore des problemes lies a la mauvaise cellulolyse dans le rumen. Les causes possibles de cette derniere sont recherchees: action des acides phenoliques et de l'azote

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Ramihone, Bruno. "Facteurs limitant la fermentation dans le rumen des pailles de céréales (à petits grains) traitées à l'ammoniac anhydre." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37609088s.

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Dschaak, Christopher M. "Use of Rumen Modifiers to Manipulate Ruminal Fermentation and Improve Nutrient Utilization and Lactational Performance of Dairy Cows." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1238.

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Overall hypothesis in a series of lactation studies reported in this dissertation was that supplementing different rumen modifiers would have consistent responses on ruminal fermentation and lactational performance under optimal ruminal fermentative conditions. First experiment investigated the influence magnesium exchanged zeolite on ruminal fermentation and lactational performance. Intake of dry matter (DM), milk yield, milk fat concentration, and feed efficiency were not affected. Milk protein concentration tended (P = 0.15) to be higher for the zeolite total mixed ration (TMR). Ruminal pH

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Yang, Chongwu. "Evaluation of Inhibitors of Lysozyme and Peptidases as New Approaches to Control Growth of Rumen Protozoa." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1500471429645685.

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Silva, Zinaldo Firmino da. "Digestão e fermentação ruminal em vacas leiteiras recebendo glicerina bruta na dieta /." Jaboticabal : [s.n.], 2011. http://hdl.handle.net/11449/104045.

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Orientador: Jane Maria Bertocco Ezequiel<br>Banca: Juliana Borsari Dourado Sancanari<br>Banca: Weber Vilas Bôas Soares<br>Banca: Mauro Dal Secco de Oliveira<br>Banca: Atushi Sugohara<br>Resumo: Avaliou-se efeito da inclusão de 0, 15 e 30% de glicerina bruta (GB) na matéria seca (MS) de dietas em substituição ao milho grão moído sobre o consumo de MS, produção de leite (PL), fermentação ruminal e digestibilidade da MS (DMS) em vacas leiteiras. Foram utilizadas seis vacas multíparas, da raça Holandesa providas de cânula permanente de 4" no rúmen, estando no início do experimento com peso médio d

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Doherty, John Gerard. "The effect of differences in silage fermentation and concentrate source on rumen and milk production parameters in dairy cows." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241388.

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Huang, Yayu. "Effect of live yeast on the fermentation and microbiological physico-chemical parameters of the rumen, depending on the nature of the diet : modeling and validation in ruminant." Thesis, Toulouse, INPT, 2018. http://www.theses.fr/2018INPT0003.

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L'acidose ruminale est l'une des préoccupations majeures des exploitations laitières actuelles. Les levures vivantes (LV) ont été largement étudiées et utilisées chez les vaches laitières pour stabiliser la fermentation ruminale. Récemment, la mesure du potentiel redox ruminal (Eh, en mV) a été considérée comme un outil intéressant pour indiquer le trouble de la fermentation ruminale. L'effet positif de LV sur Eh ruminal a été rapporté, mais il reste variable selon les conditions expérimentales. Les objectifs de ce travail étaient de fournir une meilleure compréhension du mode d'action de LV e

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